Emerald Tablet of Hermes

"The Sense of this Table may sufficiently convince us that the Author was well acquainted with the Secret Operations of Nature, and with the Secret Work of the Philosopher's; he likewise well knew and believed in the True God. It has been believed for several Ages that Cham, one of the Sons of Noah is the Author of this Monument of Antiquity. A very ancient Author, I do not recollect his name, who lived several centuries before Christ, mentions this Table, and says that he had seen it in Egypt at the Court; that it was a precious Stone, an Emerald, whereon these Characters were represented in bas-relief, not engraved. That it was in his time esteemed above 2,000 years old, and that the matter of this Emerald had once been in a fluid state like melted glass, and had been cast in a mould, and that to this flux the Artist had given the hardness of the natural and genuine Emerald, by Art."
-Bacstrom's Original Alchemical Manuscripts